ceph/src/jaegertracing/opentelemetry-cpp/api/test/trace/provider_test.cc

   1 // Copyright The OpenTelemetry Authors
   2 // SPDX-License-Identifier: Apache-2.0
   3
   4 #include "opentelemetry/trace/provider.h"
   5 #include "opentelemetry/nostd/shared_ptr.h"
   6
   7 #include <gtest/gtest.h>
   8
   9 using opentelemetry::trace::Provider;
  10 using opentelemetry::trace::Tracer;
  11 using opentelemetry::trace::TracerProvider;
  12
  13 namespace nostd = opentelemetry::nostd;
  14
  15 class TestProvider : public TracerProvider
  16 {
  17   nostd::shared_ptr<Tracer> GetTracer(nostd::string_view library_name,
  18                                       nostd::string_view library_version,
  19                                       nostd::string_view schema_url) noexcept override
  20   {
  21     return nostd::shared_ptr<Tracer>(nullptr);
  22   }
  23 };
  24
  25 TEST(Provider, GetTracerProviderDefault)
  26 {
  27   auto tf = Provider::GetTracerProvider();
  28   EXPECT_NE(nullptr, tf);
  29 }
  30
  31 TEST(Provider, SetTracerProvider)
  32 {
  33   auto tf = nostd::shared_ptr<TracerProvider>(new TestProvider());
  34   Provider::SetTracerProvider(tf);
  35   ASSERT_EQ(tf, Provider::GetTracerProvider());
  36 }